CMS Energy Corporation Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current Assets
Cash and cash equivalents	$ 802	$ 227
Restricted cash and cash equivalents	59	21
Inventories at average cost
Gas in underground storage	326	587
Materials and supplies	273	267
Generating plant fuel stock	78	84
Deferred property taxes	344	426
Regulatory assets	201	203
Prepayments and other current assets	110	80
Total current assets	3,091	2,839
Plant, Property, and Equipment
Plant, property, and equipment, gross	33,236	33,135
Less accumulated depreciation and amortization	9,006	9,007
Plant, property, and equipment, net	24,230	24,128
Construction work in progress	1,050	944
Total plant, property, and equipment	25,280	25,072
Other Non‑current Assets
Regulatory assets	3,608	3,683
Accounts receivable	22	22
Investments	73	76
Postretirement benefits	1,509	1,468
Other	318	357
Total other non‑current assets	5,530	5,606
Total Assets	33,901	33,517
Current Liabilities
Current portion of long-term debt and finance leases	772	980
Notes payable	0	93
Accrued rate refunds	28	54
Accrued interest	169	142
Accrued taxes	455	612
Regulatory liabilities	72	56
Other current liabilities	148	149
Total current liabilities	2,295	2,895
Non‑current Liabilities
Long-term debt	14,973	14,508
Non-current portion of finance leases	61	62
Regulatory liabilities	3,968	3,894
Postretirement benefits	104	106
Asset retirement obligations	777	771
Deferred investment tax credit	125	126
Deferred income taxes	2,679	2,615
Other non‑current liabilities	413	415
Total non‑current liabilities	23,100	22,497
Commitments and Contingencies
Common stockholders’ equity
Common stock	3	3
Other paid-in capital	5,975	5,705
Accumulated other comprehensive loss	(45)	(46)
Retained earnings	1,789	1,658
Total common stockholders’ equity	7,722	7,320
Cumulative preferred stock	224	224
Total stockholders’ equity	7,946	7,544
Noncontrolling interests	560	581
Total equity	8,506	8,125
Total Liabilities and Equity	33,901	33,517
Nonrelated Party
Current Assets
Accounts receivable and accrued revenue, less allowance of $23 in 2024 and $21 in 2023	889	933
Current Liabilities
Accounts payable	644	802
Related Party
Current Assets
Accounts receivable – related parties	9	11
Current Liabilities
Accounts payable	$ 7	$ 7